Nitrous Oxide - TNT 150 hit on stock tune- discussion
03-12-2006, 04:30 PM
i've read about it before, many people do it/have done it. i was hoping they would post up.
im planning on taking 2* of timing out, that's it. with 93/94 octane- and stock fuel map. i can really do whatever i want (hptuners) but i want the most out of it and from experiences in the past, the less you stray from the stock tune the better off you are. i only change what i need to and have always had good results.
for a tnt 100 shot im going to try a stock tune- see if i can even take a little bit of fuel out before i get any knock.
i also have the racetronix pump and tr6's.
this post is more to see how many people are doing something similar, since i know im going to have to log the car and see what it likes. i hear about people being WAY overly safe, pulling out 4-5* of timing and running 10.5 a/f for a 150 shot. im gonna try to walk the line :)
and before people start saying "POP!" :jest: i log everything and moniter knock religiously.
03-12-2006, 04:34 PM
another thing- it will be sprayed from 4500rpms and up (shift extension is 4700 and it is not getting hit out of the hole), so if im not mistaken this gives me a little more to play with timing-wise, compared to those who spray at a lower rpm.
03-12-2006, 04:34 PM
Tons of people run a 150 wet shot on a stock tune. Ive been doing it for a while now. I did get a new in tank pump to be safer even though there are some out there you just use the stock pump. Just be sure to use the tr6 plugs and safety devices like WOT switch, window switch and a FPSS and you should be fine. You do not need to mess with the tune at all for up to 150 shot. It cant hurt to get it tuned though if you wish.
Why are you going to activate it so late anyway?
03-12-2006, 04:42 PM
i will be tuning it myself (i don't trust anybody else) if need be- but like i said, the LESS you hack up the tune the better/ more reliable the car runs from my experience.
the late activation is only a theory, and my thoughts are this= i launch/ flash to right around 3800rpms at the track. stock rear (w/girdle and stud kit), bone stock suspension and stock drivetrain otherwise. it launches hard enough for me now as it is.
anyway- i launch it, with the system on and set to activate at 4500rpms. the initial hit of the launch is like normal, it bites and takes off and THEN the juice hits. window switch turns it off at 5900 rpms and then my shift extension is 4700rpms 1-2 anyway so when it shifts im in the window again. 2-3 extension is a tad higher yet.
sounds good on paper :eyes: , will be testing it soon. im trying to keep the stock rear/trans in the car and still hopefully run very low 11's.
03-12-2006, 04:46 PM
is the nx shot also rated at the wheels? i know tnt is so it tends to be more like 180 shot (at the crank).
03-12-2006, 05:46 PM
I ran this setup for over a year. 3000-5800 with stock gears/shiftpoits....
03-12-2006, 06:53 PM
Change plugs to Tr6 and fuel pump
03-12-2006, 07:20 PM
It's supposed be able to be used with stock tune. I had no issues, but I would do some pulls on the dynoe to make sure it's in good order.
Also, you don't tune the engine to your nitous, you tune the nitrous to your engine with jetting.
03-12-2006, 07:54 PM
I did 485rwhp/601rwtq with a lid and cutout on a 150 TNT stock tune, stock lower end
03-12-2006, 07:56 PM
you are correct about the spraying later being safer and requiring less retard. The most retard is needed at peak TQ. The lower you hit nitrous in the rpm the more tq it makes. You should be fine spraying a 150 shot.....especially at 4500 and up.
If it were at 3000 I would recomend some retard or atleast some 100 octane. The TNT 150 usually comes out to more.